import { computed, onMounted, ref } from "vue";

export default function () {
  let sum = ref(0);
  let bigSum = computed(()=>{
    return sum.value * 10
  })

  function add() {
    sum.value += 1;
  }
  onMounted(() => {
    add();
  });
  return { sum, bigSum, add };
}
